CHANGES in outdoor weather often produce baffling changes in indoor conditions — things that never leaked before suddenly leak. Drafts develop in previously calm spaces. And for one reader, cold ...

Question: I have a question about my air conditioner. The air handler in the attic gets a lot of mildew on the outside of the unit and around the ductwork. Mildew builds up in the drain pan and then ...

Water in the attic can come from a few sources, including leaky pipes, roof leaks and HVAC duct work, and it can make you sick.

Is your home's ductwork so leaky you're basically air-conditioning your attic? That old clothes dryer so power-hungry it's shrinking your bank account? Hunting down these energy vampires can save you ...

Is an attic fan a good investment for my home? There is a lot of confusion surrounding attic fans. Studies have shown if your attic is properly ventilated with a ridge vent and your attic is well ...

Q I was reading one of your postings recently that had to do with roof venting. I have a question that you may, or may not, be able to help me with. We have a home in Raleigh, N.C., built in the 1930s ...

This regularly scheduled sponsored column is written by the Arlington Initiative to Rethink Energy team (AIRE). This county program helps you make smart energy decisions that save you money and leaves ...

Q. I sure hope you have some solutions for us. We have oil hot water heat in our home. It is a 2 -story with a walkout basement and was built in 1973. What are our options for air conditioning? Two or ...